Perhaps you should try some spelling variations:
governments services » government services, government service, governments serve
investment period » investment series, investment policy, adjustment period
based investment » fixed investment, best investment, bond investment
make governments » market governments, state governments, member governments
kept based » depth based, text based, set based

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( h. kept based investment period ) or ( h. kept make governments services ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( h. kept based investment period ) OR ( h. kept make governments services )).
• Adding a wildcard symbol may retrieve word variants: (( h. kept based investment period ) or ( h. kept make governments services ))*.